Sono Uruwashiki Hito wa,

Koto, an average girl, is close friends with Fumi, the top student at a prestigious all-girls’ school known for her intelligence and beauty. After summer break, Fumi vanishes without explanation, leading to speculation among students. Koto finds a diary and decides to investigate the circumstances behind her friend’s disappearance. Through the diary, she begins to uncover information that may reveal what happened to Fumi.